ArticleActa cirurgica brasileira2023
The role of TNF-α and NFkβ in an experimental model of intestinal carcinogenesis with 1,2-dimethyhydrazine.
Article in Acta cirurgica brasileira, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed, 0 citations in OpenAlex.
- Infective Endocarditis in DisseminatedCase reports in infectious diseases · 2026Article
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5 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
purposeTo analyze the potential of tumor necrosis factor-α (TNF-α) and factor nuclear kappa B (NF-κB) as colorectal cancer (CRC) biomarkers in an experimental model of intestinal carcinogenesis with 1,2-dimethyhydrazine (1,2-DMH).
methodsTwenty-four male Wistar rats were divided into two groups: sham and 1,2-DMH. First, 1,2-DMH (20 mg/kg/week) was administered for 15 consecutive weeks. In the 25th week, proctocolectomy was conducted. Histopathological analysis, immunohistochemistry, and gene expression of TNF-α and NF-κB were performed. Statistical analysis was performed using GraphPad Prism. The location of aberrant crypt foci (ACF) was analyzed by Kruskal-Wallis' test. For analyses with two groups with parametric data, the t-test was used; for non-parametric data, the Mann-Whitney's test was used. P < 0.05 was considered significant.
resultsThe number of ACF and macroscopic lesions was significantly higher (p < 0.5) in the 1,2-DMH group compared to the sham group, and most ACF were concentrated in the distal segment of the colon. There was a statistically significant increase (p < 0.5) in protein and gene expression of TNF-α and NF-κB in the 1,2-DMH group compared to the sham group.
conclusionsOur results provide supportive evidence that TNF-α and NF-κB pathways are strongly involved in CRC development in rats and might be used as early biomarkers of CRC pathogenesis in experimental studies.
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